You are right - I didn't add any movies and thought of that this morning prior to logging in. Forget my last comment about radarr. So I guess the question is, how do I fix the error with resizing?
Okay - give me a bit here (maybe the rest of the day). It's way to early to say I found the issue, but Sonarr isn't crashing 15 seconds in, so we will see.
I was chatting with an admin in NZBgeek about possible alternatives to Sonarr I could try during this troubling time and it was suggested that Windows could have done an update that messed with my settings (because that never happens).
Anyway, upon further investigation it would seem that a recent update moved me from my "Private Network" to the "Guest or Public Network". I've moved myself back to my Private Network and Sonarr has now been running for 10min. I know, 10min is a small amount of time, but it's a vast improvement over the 15sec I was getting.
I'll update later and let you know if Sonarr is still running.
Sadly - this did not make it. Although it did last longer than before, Sonarr died again shorlty after posting. sigh